Marking machine



. March H' E' El"-OTT MARKING MACHINE lled Nov, 9J 1935 5 Sheets-Sheet 1 l, I W.

MARKING MACHINE March 14, 1939.

3 Sheets-Sheet 2 Filed Nov. 9, 1955 if 20.4 l 202/ 200 d? 20d 20d* M Marh 14, 1939. HA E ELUOTT 2,150,272

MARKING MACHINE :s sheets-sheet 3 Filed Nov. 9, 1935 Patented Mar. 14, 1939 UNITED STATES PATENT OFFICE Application November 9, 1935, Serial No. 48,961 In Great Britain November' 10, 1934 56 Claims.

This invention relates to marking machines and is illustrated herein as 4embodied in a machine particularly adapted for marking parts of boots and shoes, for example linings, to indicate the size and style and other characteristics of the boot or shoe.

Marking machines provided with a row of disks carrying marking characters on their peripheries, Such asfl to 9 or a to Z, are being extensively used for marking parts of boots and shoes. In such machines the disks are rotated to bring different marking characters into marking position and the marks are formed on the work in a single row during one operation of the machine.

' Under some conditions, in order to` mark the necessary information upon the lining, the row of characters may be too long with the result that a portion of the marks may be illegible or may be in a; position where they cannot easily be read'. To overcome this and other diculties, auxiliary type carrying plates have been provided which carry loose type pieces for making oneV or more rows of marks parallel to the row of marks made by the marking characters on the disks. However,the loose type pieces arey relatively small and are diflicult to place in position, particularly if they are hot as when used in connection with' a heated head. Consequently the changing of the loose type pieces is likely to result in loss of time and production.

An object of the present invention is to provide a machine having type' disks for making a double row of marks and adapted to be readily' reset to change the marks. To this end a featurev of' the present invention resides in a mechanism embodying marking disks having marking' characters on their peripheries and arranged in pairs so that alternate disks imprint the characters in one line and the remaining disks imprint' the characters in' an adjacent parallel line; To this end, the'marking characters on one of thel disksof a pair are arranged to overlap and be interposed between the marking characters on the other disk of the pair. Means are provided for separating' the disks `of some desired pair to separate the interdgitated characters so' that the disks may be rotated relatively to each other'. As

illustrated, a pair of marking disks, each having" a plural-ityof laterally extending type-carrying projections formed on the periphery of itsY disk and positioned to overlap the other disk, is provided with cam surfaces formed on thevface of theY diskV which is adjacent to the other disk. Y v These Y cam surfaces cooperate to separate the disks to permit the laterally'exteiding type projections to pass4- by' each other when the disks are rotated relatively to each other. By the use of such a construction, two rows of marks can be formed Ona work piece in av single operation of the machine and the marking characters in either row can be easily and quickly changed when desired.

Another' object of the invention is to provide an improved mechanism for rotating the marking disks' when it is necessary to change the marking characters in marking position and' to this end another feature o'f the invention resides in a markingy machine providedl with disk-turning means comprising an actuator for each disk, they actuator' for the disk to be reset lo'eing movable successively int'o engagement with the disk to be resetx and then in a different direction to rotate the selected disk to bring a succeeding marking character thereon into marking position.

As herein illustrated, the disks are normally locked' in marking position by pawls, and that one oi which corresponding to the disk being reset is released, accordingrv to another feature of the invention, prior to the movement of this 4disk in response toa continuous movement of the diskturning means in one direction.

With these andother objects'and features in View the invention will now be described with reference to the accompanying drawings.

In the drawings, y

Fig. 1 is a perspective View of the forward portion of a machine illustrating a preferred embodimentvr of the invention;

Fig. 2 is an exploded View illustrating a pair of markingvdisks;

Fig. 3 is a plan View of the head of -the machine;

' Fig. 4 is a detail View in side elevation, "seen from' the side opposite to that shown in Fig. l, showing the mechanismV for insuring rotation of the' marking disks in the proper direction;

Fig. 5 is a detail view in side elevation and partly in section, in the same direction as Fig. 4, of the actuating mechanism for rotating the marking disks;

Fig. 6 isa detail View in side elevation of the mechanism for moving a selectedl stop member for the marking disks' out of operative position;

Fig. '7 is a detail view of an operating mechanism for ayfeed roll for a paper strip; and

Fig. 8 is an end `View of the feed roll mechanism.

The present invention isshown by way ofillust'ration as embodiedgin a machine of the type disclosed in Unitedy States Letters Patent No. 1,109,938", grantedjSeptember --8, 1914; on-anapplication led in the name of Fred Asahel Putnam. As in that machine, the marking head is mounted at the end of a forked main lever i6 (Fig. 3) which is fulcrumed to the frame i2 (Fig. 1) on a shaft i8 and is oscillated to carry the head toward and away from the work. Oscillation of this lever i6 may be accomplished in any desired way as: by a link (not shown) connected to the lever I6 and to va crank on an operating shaft (not shown).

The forward end of the lever i6 carries a hollow shaft 22 (Figs. 4 and 5) on which is mounted a plurality of marking disks 26 (Figs. 1 and 2). Each disk 22 is provided with radially extending projections 24 (Fig. 2) which carry marking characters (Fig. 1). The main body portions of disks 26 are one-sixteenth of an inch in thickness and the projections 24 are one-eighth of an inch in thickness. The projections 24 are flush with one side of the disks 26 and project one-sixteenth of an inch beyond the other sides of the disks.

The laterally interengaged disks 20 are arranged in pairs so that the projections 24 on one disk 26 lie between and, hence, are interdigitated with the projections 24 on the other disk of the pair. The projections 24 on one disk 26 are so arranged that they lie close behind the corresponding projections on the other disk of the pair. In other words, the projections 24 on each disk 20 overlap the periphery of the body portion of the other with adjacent projections 24 of each disk abutting each other so'that when the body portions of the disks 29 are in Contact the side surfaces of these projections 24 lie in the same plane. This construction, when embodied in a plurality of pairs of coaxial disks provides two rows of marking characters (Fig. 1), one located directly behind the other. As illustrated, the Vouter faces of the projections 24 are located in a circle approximately four inches in diameter.

To provide for separating Vthe disks 22 of each pair, so that one may be rotated, when it is desired to bring the marking character on another projection 24 into marking position, the inner surfaces of adjacent disks 26 of each pair are provided with cam members 26 (Fig. 2) These members 26 extend laterally of each disk 2li approximately one-sixteenth of an inch and are twelve in number, which corresponds to the number of projections 24 on each of the disks 20. The cam members 26 are nearer the centers of the disks 26 than the marking projections 24. The lateral faces 28 (Fig. 2) of the cam members 26 are parallel to the side faces of the disks 26, and the cam members 26 have inclined faces 36 extending from their'lateral faces 28. These inclined faces extend toward the side faces of the disks 26 and into openings 32 formed in the bodies of the disks 26. When a pair of disks 26 is brought close together so that the marking projections 24 on the two disks 26 lie behind each other around the disks 20, the cam members 26 on each disk 26 enter the openings 32 in the other disk 26. When the disks 26 are rotated relatively to each other in the proper direction, the inclined faces 36 of the cam members 26, by their engagement and relative movement, separate the two disks 26 laterally so that the laterally extending portions of the projections` 24 just pass each other. When the marking projections 24 have passed each other, the cam members 26 enter the next openings 32 and the disks 26 move into engagement with each other. When the disks 2D are thus in engagement and the projections 24 lie behind each other, there is a small gap 34 (Figs. 4 and 5) between adjacent projections. Also, when the disks 20 are in .en-

gagement with each other there is a larger gap operations. To this end, the -horizontal shaft 22I which carries the Ydisks 20 is supported at its ends by blocks 46 and 42 (Figs. 1 and 3) secured to the forked forward end of the lever I6. The disks 2U are so arranged that they arefree to rotate and to move .axially on the shaft. The hollow shaft 22 receives an electric heating unit 44 (Fig. 2) by which the shaft 22 Yand the disks 26 are heated. At each end of the row of disks 26 is a ring 46 slidably mounted on the shaft 22. Each ring 46 is arranged to bear against the outer face of an endmost disk 26 and is provided with threelaterally projecting pins 48 equally spaced about its axis. The pins 48 are slidably mounted in the above-mentioned blocks 40, 42 and at their outer ends are secured in three-armed members 56, V52. The three-armed members 56, 52 are engaged at their centers by the forward ends of arms 54, 56 of a pair of rearwardly extending clamping levers 58, 60. The clamping levers 58, 60 are pivoted on upwardly extending pivot pins 62, 64, respectively, carried by the operating or main lever I6. The clamping levers 58, 66 have rearwardly extending arms between which is a spring 66 surrounding a rod 61 (Fig. 3) normally urging the forward ends of the arms toward each other and through the rings 46 pressing the marking disks 2U into close engagement with each other. The rearwardly extending arms of the clamping levers 58, 6U have threaded for adjustment in them horizontal studsv 68, 'l0 which extend toward each other. Rotatably mounted in the rear of the operating lever I 6 in suitable bearings isa cam shaft 'l2 (Figs. 3 and 4) which extendsfrom right to left of the machine and has a crank 73 by whichY it may be turned manually. The cam shaft 'I2 is provided with a pair of locking cams 14, 16 which, in one position of the cam shaft, engage the heads of both the studs 68, 'l0 and, through the clamping levers 58, 60, press the marking disks 20 together. In another position of the cam shaft '12, a gap in one of the cams '14, 'I6 allows one of the clamping levers 58, 6D to move about its pivot while the other clamping lever is prevented from moving. In a third position of the cam shaft 12 conditions are reversed and that clamping lever, which was held against movement in the second position of the cam shaft 12, is now free to move on its pivot while other clamping lever which was free to move is now held against movement.

Either one of the two marking disks 20 of each pair is rotated step by step by one of a series of actuators 'I8 (Figs. 3 and 5).Y As'illustrated, the machine is provided with twelve actuators 'I8 which correspond to the number of pairs of disks 20 in the machine and only one of which is selected as later described, for the setting of its corresponding disk at any one time. A tooth 8U (Fig. on each actuator 18 enters the small gap 34 between adjacent projections 24 of each pair of disks 2D and is moved in one direction to rotate one ofthe disks 26 of each pair and in the opposite direction to rotate the other disk 26 of that pair. As one of the disks 2D of a pair isv rotated the other disk of the pair is prevented from rotating and is allowed to move axially onthe shaft 22 Whereas the disk 28 which is being rotated and its actuator 18 do not move axially.

When the disks 28 are to be rotated, the top of the right-hand disk of any pair is rotated forwardly and the top of the left-hand disk is rotated rearwardly. When the right-hand disk of a pair is rotated, the left-hand disk and all those to the left of it are moved axially to the left. When the left-hand disk of a pair is rotated, the right-hand disk and all those to the right of it are moved axially to the right. Such an axial movement of the marking disks 28 is controlled by the locking cams 14, 16 acting through the clamping levers 58, 68. If the right-hand disk 28 of the pair is to be rotated, the cam shaft 12 is rotated by the handle 13 into a position in which the rightclamping lever 68 is locked and the left lever 58 is permitted to move. If the lefthand disk 28 of the pair is to be rotated, the handle 13 is rotated in the opposite direction to lock the left-hand lever 58 and to allow the righthand lever 68 to be moved. After rotation of any of the two marking disks 28, the cam shaft 12 is returned to its initial position so that both clamping levers 58, 68 clamp the marking disks 28 together.

The actuators 18 are pivoted on a horizontal pin 82 (Figs. 1 and 5). The pin 82 is supported in a swinging actuator frame 84, which comprises cross-rods 85 bolted to webs extending downwardly at each side of the marking disks 28, and is pivoted at 81 to the main lever l5 coaxially with the disks 28. An actuator-control bracket 88 (Figs. 1 and 5) is` also pivoted on the pin 82. A short horizontal shaft 88 is rotatably mounted in one side Web of the frame 84 and has secured to it a cam 98 (Fig. 5) which is engaged on its opposite sides by a fork 92 on the bracket 86. A short shaft 88 also has secured to it another cam 94 (Fig. 4) which operates in a normally stationary fork 98 (Figs. 1 and 4) secured to the lever I8 by studs 81. The shaft 88 has secured on its right-hand end a hand crank lever 98 (Fig. 1) by which it may be rotated. When the shaft 88 is rotated, the cams 98 and 94 are rotated with it. The cam 94, in cooperating with the normally stationary guideway 98, swings the shaft 88 and with it, the frame 84, bodily back and forth. The cam 88 which engages the forked member 92 of the bracket 86 causes the bracket 86 to be swung up and down. The angular relation of the cam 98 to the cam 94 is such that when the shaft 88 is rotated to reset one of the right-hand disks 28 the actuator-control bracket 86 is` first actuated to move the tooth 88 on a selected one of the actuators 18 into the small gap 34 between two of the projections 24 on a selected pair of marking disks 28. Continued rotation of the shaft 88 then swings the actuator frame 84 forwardly to rotate one of the right-hand marking disks 28 a step. rlhe cam 94 is of such a contour that the frame 84 is swung forwardly a distance equal to the distance between successive projections 24. At the end of the forward movement of the swinging actuator frame 84, the tooth 88 of the actuator 18 is withdrawn from the opening or gap 84 by the corresponding movement of the bracket 88under the control of its cam 98 and during rearward movement of the frame 84 moves idly backward. When the shaft 88 is rotated in the opposite direction, the tooth 88 is held out of engagement with the gap 34 during the forward movement of the frame and is moved into engagement with the gap 34 by the cam 98 before rearward movement of the swinging frame 84 takes place and during this latter movement rotates one of the left-hand marking disks 28 so that its top portion moves rearwardly.

To show the operator which numbers on the disks 28 are in operative position, the inclined faces 38 of the projections 24 on the disks 28 are provided with indicating characters or are left blank on those projections which lack type characters. These indicating characters are displaced from the corresponding printing characters a certain angular distance so that the former are in a position readily visible to the operator and correspond to the characters or blanks then in operative position. Pointers (not shown) of any suitable type may be placed on the blocks 48, 42 at each side of the disks 20 to tell the operator which row of indicating characters opposite the pointers corresponds to the printing character which is in operating position and will mark the work-piece.

As stated above, when a selected marking disk 28 is tobe rotated, some of the disks V28, which lie to the right or left, as the case may be, will' move axially on the shaft 22, having been released by a locking cam 14 or 18 on the shaft 12. As an additional safeguard against improper operation, the direction of rotation of the actuator-operating shaft 88 is controlled by mechanism also operated by the cam shaft 12. To this end, the crank 13 secured to the cam shaft 12 (Fig. 4) is provided with a crank pin |84 which has pivotally secured to it a forwardly extending link |88. The forward end of the link |86 passesv through a block |88 pivoted at |81 in the forked lower end of a. stop lever ||8. The link |88 has on it at each' side of the block |88 springs ||2, ||4 which allow the block |88 to move relatively to the link |88 in either direction. The pivot |81 of the block |88 is substantially in alinement with the axis 81 of the swinging actuator frame 84. rEhe stop lever ||8 is pivoted on a horizontal stud ||8 extending laterally of the machine and secured in the right-hand depending portion of the actuator frame 84 about midway between the axis of the marking disk 28 and the axis of the actuating shaft 88. At its upper end the stop lever ||8 is forked and each arm of the fork has secured to it a block |28 acting like a pawl. yThe blocks |28 are arranged to engage alternately opposite sides of a toothed wheel |22 secured to the shaft 88. When the stop lever ||8 is swung in one direction or the other by its connection to the crank pin |84 on the shaft 12, a bevel edge of one of the blocks |28 is moved into engagement with the toothed wheel |22 and prevents its rotation in one direction but permits it to be rotated in the opposite direction.

If it is desired to rotate the right-hand marking disk 28 of a selected pair, perforce forwardly, the cam shaft 12 is rotated by the handle 13 so that the left-hand locking cam 14 will allow the marking disks 28 at the left of the one being rotated to move axially to the left and the appropriate one of the blocks |28 of the stop lever ||8 is, through the crank |84 and the link |88, f

moved into engagement with the toothed wheel |22 so that the shaft 88 can be rotated only in a direction to move one of the marking disks 28 forwardly. If it is desired to rotate the other of the selected pair of marking disks 28, perforce rearwardly, the cam shaft 12 is rotated through degrees so that the disks 28 at the right-of the one being rotated can move axially to the right and the other block |28 on the stop lever is moved .into engagement with the other side of the toothed wheel |22 so that the shaft 88 can only be moved in the proper direction. The springs 2, 4 on the linkY |06 allow the block |26 which is in engagement with vthe toothed wheel |22 to click past the teeth as the shaft 88 is rotated in the direction in which its rotation is not prevented. Since the pivot |01 of the block |68 at` the lower end of the stop lever H6 is substantially coaxial with the pivot 81 of the swinging actuator frame 84, the movement of the Y stop lever ||6 is unaffected by movement of the actuator frame 84 either rearwardly or forwardly. After one or a number of marking disks 26 have been rotated, the cam shaft 12 is returned to its initial position in which the cams 14, 16: press the markingrdisk's 20'together and both the blocks 26 on the stopl lever H6 are out of engagement with the toothed wheel |22. Rotation of any of the marking disks 20 when the cam shaft 12 is in its neutral marking disks 20 are held each other 14, 16.

A selected marking disk actuator 18 associated with the marking disk 26 which it is` desired to rotate, is moved relatively to the other actuators 18 from an inoperative position to an operative position where its tooth 8G, uponrmovement of the bracket 86, can engage the gap 34 between the marking projections 24 of the pair of disks 2|). For this purpose, one of the actuators 13 is engaged by a lug |24 (Fig. 5) projecting from a horizontal selector shaft |26. The shaft |26 is threaded in the actuator-control bracket 86 and has an actuating handle |21 mountedron a crank arm |26. rIhe shaft |26 is provided with a screw-thread |28 (Fig. 3) which engages a threaded sleeve |36 secured to the control bracket 86. When the selector shaft 26 is rotated by the operator through one revolution, the lug |24 is moved from one actuator 18 to the next and. during its movement releases the actuator 18 with which it has been in engagement and depresses the tail of the actuator 18 into engagement with which it has been moved. Each actuator 18 has a forwardly projecting arm 3| (Fig. 5) which extends over and close to the top of the marking disks 26. These armsV 3| are visible to the operator so that when the rear'end of an actuator is depressed the front end thereof is raised and the operator can see which actuator 18 is in operative position and which disk 26 will be moved when the shaft 88 is rotated to depress an actuator and to swing the frame 84. The forwardly extending arms |3| of the actuators 18 are depressed, i. e. held in normal position, by leaf springs |32 which normally hold the rear ends of the actuators against the selector shaft |26.

A row of stop pawls |34 (Fig. 5) are provided which prevent rotation of all of the marking disks 26 except the one which is beingy rotated. rThe stop pawls |34 are slightly thinner than the disks 2|l'and are slidingly mounted in the main lever |6 at the rear of the disks. The stop pawls |34 are urged forwardly into engagement with the small gaps 34 between the marking projections 24 by leaf springs |36 (Fig. 5) secured to a cross bar |31 attached to lugs |39 and |4| (Fig. 3) on the lever |6. The top of each pawl |34 has a notch |38 and a tooth |40 formed in thelower end of a depending stop pawl arm |42 is slightly less than the width of the pawls |34 and projects into one of these notches |38 which, when alined, form a groove. The arm |42 is secured on a position is p-revented since the Y lwith the disks 26.

horizontal shaft |44 (Figs. 3 and 5) whichV extends laterally of the machine and is rotatably and slidingly mounted in the lever 6. An upwardly and forwardly extending plate |46 (Fig. 6) ismounted on the left-hand end, as seen from the front of the machine, of the stop pawl shaft |44 (Fig. l). The plate |46 is mounted on the shaft |44 between collars |48, |56 (Figs. 3 and 6) secured on the shaft |44 so that the plate |46 and the shaft |44 can move as a unit axially of the shaft. The plate |46, however, is free to rotate relatively to the shaft |44. The plate |46 Vhas formed in it a slot |52 (Fig. 6) through which passes one end of the shaft |26. Collars |58, |60 (Fig. 3), between which is located the plate |46, are secured to the selector shaft |26. By this construction the shaft |44 moves lengthwise with the shaft |26 and the tooth |46 on the armV |42 is moved along the stop pawls |34 as the lug |24 on the selector shaft 26 is moved along the actuators 18. The shaft |44 has splined to it another depending arm |62 (Fig. 6) which at its lower end is pivotally connected to the rear end of a forwardly extending bar |64. The forward end of the bar |64 is provided with a pair of arms |68, |16 extending upwardly and downwardly from the bar |64. The front faces of these arms |66, |16 are engaged by pins |12, |14 extending laterallyv from an arm |16 pivoted at |19 on the actuator frame 84 coaxially therewith and hence The arm |16 extends upwardly and rearwardly and at certain times in the cycle of Ymovement of the actuator frame 84 is engaged by a rib |11 (Fig. 6) on the selector shaft |26 and is moved in one direction or the other on the actuator frame pivot to withdraw one of the stop pawls |34 from engagement with a gap 34 between the marking projections 24. When the actuator-control bracket 86 is swung on its pin 82, as above described, to move the tooth 86 Aof the selected actuator 18 into engagement with the gap 34 betwen the marking projections 24, the selector shaft |26 is swung downwardly during part ofthe cycle of movement of the frame 84 so that duringV its forward or rearward swinging movement, as the case may be, with the actuator frame 84 it engages the upper end of the arm |16 and through one of the pins |12, |14 moves the bar l|64 and actuates the stop pawl shaft |44 to withdraw the selected stop pawl |34 from the gap 34 between the marking projections 24 so that the selected disk 20 may be rotated. When the actuator-control bracket 86 is swung on its pin 82 so that the actuator tooth 8D is withdrawn from the disks 20, the selector shaft |26 is raised so that it releases the arm |16 and allows the corresponding stop pawl |34, previously withdrawn, to be moved by its spring |36 into engagement with the gap 34. During the movement of the actuator frame 84 when the actuator tooth 8|] is out of engagement with the disks 29, the selector shaft |26 moves idly above the upper end of the arm |16. By this means the selected stop pawl |34 is only withdrawn from the disks 2|) while a disk 26 is being set.

When the actuator frame 84 has been returned to its initial position, the selector shaft |26 is out of engagement with the arm |16 and all the stop pawls |34 are in engagement with the gaps 34 between the marking projections 24 on the marking disks 26. Whenrthe parts are in this position, the machine may be operated to mark a work-piece. If the selector shaft |26 is rotated whenV the actuator frame 84 is not in its initial sult. I-n this position one of the stop pawls |34 `will be out of engagement with its pair of disks 28 and since the stop pawl |34 is out of line with thefline of notches |38 in the stop pawls |34 the depending arm |42 on the selector shaft |44 will be unable to move along the row of stop pawls |34.

To prevent rotation of the selector shaft |26 under these conditions, a sleeve |18 (Fig. 3) is mounted on the right-hand end of the selector shaft |26. The sleeve |18 is kept from endwise movement by an arm |19a held on the end of the pin 82 and is splined to the shaft |26 so that it rotates therewith but permits the shaft |26 to move endwise through the sleeve |18. The sleeve |18 has formed on it a flange |88 which is provided with a notch |82 engaged by a pawl |84 (Fig. 4) pivoted to the pin 82. The pawl |84 has a tail |86 which is moved into engagement with an adjustable screw |98 in the actuator frame 84 when the tooth 88 of the selected actuator 18 is moved into engagement with its disk 28, the movement taking place as follows. When the actuator control bracket 86 (Fig. 5) is rotated in a clockwise direction about its pivot pin 82 to move tooth 88 on the selected actuator 18 into engagement with its disk 28, it will move the selector shaft |26 together with its attached sleeve and flange |18, |88 in the same direction, as the shaft |26 is valso mounted upon the bracket 86. Movement of the flange |88 about the pin 82 will cause the pawl |84 to rotate in the same direction about the pin 82, which also'forms the pivot for the pawl, thus moving the pawl tail |86 into engagement with the adjustable screw |98. Engagement of the pawl tail |86 with the screw |88 will prevent movement of the pawl away from the flange |88 and will thus hold the pawl |84 positively in engagement with the notch in the flange thereby preventing rotation of the shaft |28` while the actuator is in engagement with is disk 28.

When the actuator frame 84 is in its initial or rest position and the tooth 88 on the selected actuator 18 is out of engagement with its disks 28 and all the stop pawls |34 are in engagement with the disks 28, all of the notches |38 in the upper faces of the stop pawls |34 are in line. In this position the tail |86 of the pawl |84 is moved away from the screw |88 and is yieldingly pressed by a spring |92 in the actuator frame 84 into engagement with the notch |82 in the flange |88 of the sleeve |18 so that, upon rotation of the shaft |26, the pawl |84 slips out of the notch |82 and rides on the periphery of the flange |88, until, after the completion of one revolution of that shaft, it again enters, yieldingly, the notch |82. As will be apparent from an inspection of Figure 4, the arrangement of the screw |98, the pawl |84 and the collar |88 is such that when the pawl |84 is out of the notch |82 and in engagement with the periphery of the flange, the pawl tail |86 will be substantially in engagement with the adjustable screw |98 thus preventing clockwise rotation of the frame 88 about the pin 82, as viewed in Fig. 4, and consequently preventing movement of the tooth 88 on the selected actuator into engagement with its disk 28. The selector shaft |26 can then be rotated and will move endwise to move its lug |24 along the actuators 18 and the stop pawl tooth |48 along the groove formed by the alined notches |38 in the stop pawls |34. The pawl |84 and the notch |82 indicate to the operator when a complete revolution of the selector shaft |26 has been made.

Further assurance of proper alinement of the row of characters to be printed is had by a mechanism including an eccentric |94 (Figs. 3 and 4) on the cam shaft 12 and which is engaged by a fork |96 on the rear end of a lever 288. This lever 288 is pivoted on a horizontal shaft 282 extending laterally of the machine between the arms of the forked lever I6. The forward end of the lever 288 has removably secured to it a bar 284 which carries at its forward end a marking plate 286 which is arranged to be positioned beneath the marking disks 28. When the cam shaft 12 is in its neutral position in which all disks 428 are pressed axially together, the plate 286 is raised into engagement with the marking disks 28. The plate l286 has formed in it an opening 288 having beveled front and rear walls which engage the inclined faces 38 on the marking projections 24 at the bottom of the disks 28 which stamp the work. The opening 288 extends across the whole of the disks 28 and when the plate 286 is pressed upwardly the beveled walls of the opening 288 aline the whole row of projections 24 if these do not happen to be in alinement. When the cam shaft 12 is rotated in either direction from its neutral position, the eccentric |94 lowers the plate 286 and the marking disks 28 can be rotated as hereinbefore described. The lower face ofthe plate 286 surrounds the lowermost marking projections 24 and may have auxiliary marking characters fixed on it; for example, if the machine is to be used to mark shoe linings, the plate 286 at the rear of the marking projections 24 on the disks 28 may have the name of the shoe manufacturer on it, and at the sides of the marking disks 28 and in line with the lowermost characters on them the plate 288 may have stamps marking on the lining the words size, last, style and order, indicating the size of shoe, number of last, style of shoe and order number. The marking disks 28 will be rotated so that the desired number will be stamped on the work-piece in line with and at the same time as the words on the plate, The numbers will be between the words and may be separated by blank spaces.

A reel 2 |8 (Fig. l) on which is wound a continuous band of marking paper 2|| which is pressed against the work-piece by the heated characters on the disks is rotatably mounted on a spindle 2|2 secured to the right-hand side of the lever I8 and the paper passes from the reel 2|8 beneath a freely rotatable guide roll on the vrighthand side of the lever I8. The paper 2|| then passes beneath and close to the marking disks 28 and marking plate 286. Thence the paper passes between a paper feed roll 2|4 and a cooperating presser roll 2|6. The roll ZIB may be swung away from the feed roll 2|4 to allow the paper to be inserted between the rolls. 'Ihe feed roll 2M' is rotatably mounted on a bracket 2|8 (Figs. l, '7 and 8) secured to the marking lever I6 and the presser roll 2|6 is urged'toward the feed roll 2|4 by a spring 228. The feed roll 2 i4 is driven by a shaft 222 extending rearwardly from the feed roll 2|4. This shaft 222 is rotatably mounted in the lever I8 and can move lengthwise therein a small amount. The shaft 222 at its forward end has clutch teeth 224' which, when the shaft 222 is moved lengthwise, engage cooperating clutch teeth 228 on the feed roll 2`|4. The

shaft 222 has formed in it a spiral groove 228 which is engaged by a pin238 fixed in a block 232 slidingly mounted on the'shaft 222 and guided in guideways formed on the main lever I6. The block 232 is adjustably connected by a rearwardly extending link 234'to the slotted portion of a lever 236 (Fig. l) pivoted on the previously mentioned horizontal shaft I 8r extending laterally of the machine and secured in the machine frame I2. 'Ihe latter lever 236 is connected by a second rearwardly extending link (not shown) to a crank on the crank shaft which actuates the lever I6 so that as the marking disks 20 are being moved toward the Work and before they reach the work the block 232 is moved forwardly and first moves the shaft 222 forwardly lengthwise to move the clutch teeth 224 on the'shaft 222 into engagement with the clutch teeth 226 on the feed roll 2I4 and rotates the shaft V222 and feed roll 2I4 to feed a fresh length of marking paper beneath the marking disks20. Y While the marking disks 2li are being raised the block 232 is moved rearwardly and rst disengages the clutch faces and then rotates the shaft 222 idly. At this time the presser roll 2I6 is held by a pawl and ratchet 238. 'Ihe marking paper, which is of a width to suit the stamping, is fed such a distance during each cycle of the machine that a fresh strip of paper is positioned beneath the marking head during each cycle of the machine.

A guard 24E! (Fig. 1) extends across the front of the lower part of the disks 20 and its lower edge is just above the upper surface of a work support 242 which is Vsecured to the machine frame I 2. The work-piece to be marked is passed beneath the guard 246 and the guard 240 prevents the operators fingers from being accidentally placed between the work support 242 and disks 2E and injured by theV disks 20 as they descend to mark the work-piece. The guard 240 is in the form of a grid through which the operator can view the work when positioned beneath the disks 26. The guard 24!! is secured to the lefthand side of the machine frame by a bar 244 so shaped that the operators left hand can approach close to theleft-hand side of the work support 242 below the upper surface thereof when holding one end of Va work piece supported' on the work support 242 but is prevented from being placed on the work support 242 from the side thereof. The guard 240 has pivoted to its righthand side a` rearwardly extending finger 245 connected to a bell crank 246 which is normally raised by a spring 248 so that the'finger 245 is at about the level of the upper surface of the work support 242 and the right-hand end of the work-piece passes between the right-hand side of the work support 242 and the finger 245 and is held by the operators right hand which is below the iinger 245 and is prevented by it from being placed on the work support 242. As the disks 2U descend, the finger 245 is engaged by the marking paper beneath the guide roll at the right of the disks 2D beneath which the paper passes 'and is depressed slightly thereby and may push the operators right hand or the fingers thereof downwardly. The front and sides of the work support 242 are thus guarded bythe guard 240, the bar 244 and the finger 245, and the operators thumbs or fingers cannot be placed on the top of the work support 242.

Although the machine has been described in detail, it is believed to be advisable for a clearer understanding of the invention to summarize briey the operation of the machine. After it has been determined which disk 20 ofa pair is to be rotated, the cam shaft 'I2 is rotated to unlock one of the levers 58, to permit axial movement of the disks 26 at the left or the right of the selected disk, as the case may be, in the proper direction. 'Ihe shaft I26 is then rotated to bring the selector lug 124 into engagement with the actuator 'i'associated with the selected disk and to move the actuator toward the disk 26. The handle 98 is then rotated to rotate the shaft 88 with its cam 90 and thereby to oscillate the swinging frame 84. This will move the selected actuator I8 into engagement with its disk 2@ and will rotate the disk 26 a step to move the next marking character into marking position. 'I'he handle 98 may be rotated as many times as necessary to bring the desired marking character into marking position. After this, the cam shaft 'I2 is returned to its initial position to lock the marking disks 2U in position on the support 22 and to bring up the marking plate 266, thereby to aline the double row of characters which are in printing position. The disks are then all locked by the pawls I 34 as well as by the plate 256 and the machine may be operated as many times as desired to print these selected characters.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

l. A plurality of marking disks lhaving marking characters on their peripheries, the marking characters on one of said disks overlapping the marking characters on the other disk, and means for separating said disks to permit the marking characters on said disks to passby each other when the disks are rotated relatively to each other. Y

2. In a marking machine, a pair of marking disks disposed side by side for rotation about a common axis, said disks being laterally interengaged against rotation relatively to each other in one direction only, means` for selectively rotating said disks to reset them, and means actuated by rotation of said disks relatively toeach otherfor moving a selected disk axially to disengage it from an adjacent disk.

3. In a marking machine, a plurality of rotatably mounted marking disks, and means for resetting said disks constructed and arranged selectively to rotate them, each of said disks having meansthereon arranged to cooperate with an adjacent disk to prevent their relative rotation in one direction and to eiTect their axial separation when rotated relatively to each other in the opposite direction;

4. A plurality of marking disks having marking characters on. their peripheries, the marking characters on one of said disks overlapping the marking characters on the other disk, and means on one of said disks for separating the disks to permit the marking characters on the disks to pass by each other when the disks are rotated relatively to each other.

5. A pair of marking disks having marking characters on their peripheries, the marking characters on one of said disks overlapping the marking characters formed on the other disk, and means formed o-n said disks for producing relative axial movement between said disks to; permit the marking characters on one disk to pass by the marking characters on the other disk when one of the disks is rotated.

t.V A pair of marking disks having marking characters on their peripheries, the marking characters on one of said disks overlapping the marking characters formed on the other disk, and means formed on the ,adjacent surfaces of -said disks for moving :one of the disks axially relatively to the other When one of the disks is rotated.

7. A pair of marking disks having marking characters formed on their peripheries, vthe marking characters on one of said disks being located behind the marking characters on the other disk, and means formed on the adjacent surfaces of said disks for moving one of the disks axially relatively to the other to permit the marking characters on said disks to pass each other.

8. A pair of marking disks having marking characters formed onv their peripheries, the marking characters o-n one of said disks being located behind and substantially in aline-ment with marking characters formed on the other disk, and cam members on said disks for causing relative axial movement of said disks topermit the marking characters on said disks to pass each other when lthe disks are relatively rotated.

9. A pair of marking disks having marking characters formed on their p eripheries, the marking characters being formed on laterally extending projections with the projections on one disk overlapping the projections on the other disk, and means for separating the disks topermit the projections topass by each other when the disks are relatively rotated.

10. A pair of marking disksy having marking` characters, laterally extending projections formed on the periphery of the disks with the projections on one disk overlapping the projections on the other disk, and cam surfaces formed on the adjacent faces of said disks for separating the disks to permit the projections to pass by each other when the disks are rotated relatively to each other.

11. A pair of marking disks having laterally extending projections carrying marking charac.- ters, the projections on one of said disks` overlapping the projections on the other disk, the projections on each disk being substantially twice the thickness of the body of the disk, and means on said disks fo-r separating the disks to permit the projections to pass by each other When the disks are rotated relatively to each other.

12. In a marking machine, a support, pairs. of marking disks rotatably mounted on said support, marking characters on said disks, the marking characters on one of the disks of a pair overlapping the` marking characters of the other disk of the pair, means arranged to rotate said disks, and cam surfaces on the adjacent surfaces ,of the disks of a pair for separating the disks to permit the overlapping marking characters to pass by each other when one of said disks of a -pair is being rotated.

13. In a marking machine, a plurality of pairs of marking disks, a support on which said disks are rotatably mounted, marking projections on said disks, the projections on one of the disks of a pair overlapping the projections on the other disk of the pair, cam surfaces on the adjacent surfaces of the disks of a pair for separating the disks to permit the projections to pass each other when the disks are rotated relatively to each other, said cam surfaces being arranged to prevent rotation of each disk in one direction, and means for rotating the disks.

14. In a marking machine, a plurality of pairs of marking disks, a support on which said disks are rotatably mounted, marking projections on said disks, the projections on one of the disks of a pair being arranged to overlap the projections on the other disk of the pair, cam surfaces on the adjacent surfaces of the disks o-f a pair arranged to prevent rotation of each disk in one direction and to separate the disks topermit the projections on the disks to pass each other When the disks are rotated relatively to each other in opposite directions, and means arranged to rotate one of said disks in one direction to bring a marking character on that disk into marking position.

15. In a marking machine, a plurality of marking disks, a support on which the disks are rotatably mounted, marking projections on said disks, the projections on one of the disks of a pair being located behind and overlapping the projections on the other disk of the pair, cam surfaces on the adjacent surfaces of the disks of a pair arranged to prevent rotation of each disk in one direction and arranged to sep-arate the disks to permit the projections on the disks to pass by each other when the disks are rotated relatively to each other, and means arranged to rotate the disks to bring a marking projection into marking position.

16. In a marking machine, a plurality of marking disks, a support on which the disks are rotatably mounted, marking projections on said disks, the projections on one of the disks of a pair being located behind and overlapping the projections on the other disk of the pair, cam surfaces on the adjacent surfaces of the disks of a pair arranged to prevent rotation of each disk in one direction and arranged to separate the disks to permit the projections on the disks to pass by each other when the disks are rotated relatively to each other, means for preventing rotation of one of the disks of a pair, and means for rotating the other disk of the pair to bring a marking projection into marking position.

17. In a marking machine, a plurality of marking disks, a support o-n which said disks are mounted, a frame pivotally secured to said support, a plurality of members mounted in said frame arranged to be brought into engagement with the disks, means for selectively engaging said vmembers to move one of said members toward said disks, and means for moving a selected member and said disk.

'18. In a marking machine, a plurality of marking disks, a support on which said disks are mounted, a frame pivotally secured to said support, a plurality of fingers pivotally mounted on said frame arranged to be moved into engagement with said disks, a member for selectively engaging said fingers to move a nger toward a disk, and means for moving said frame and a selected finger to rotate said disk to bring a marking character on said disk into marking position.

19. In a marking machine, a plurality of pairs of marking disks, a support on Which the disks are mounted,'a swinging frame pivotally secured to said support, a` bracket pivotally secured to said frame, a plurality of ngers pivotally secured to said bracket and arranged to be moved into engagement with said disks, a member mounted in said bracket for selectively engaging one of said fingers for moving said finger toward its associated disk, and means for swinging said frame to rotate said disk to bring a character on said disk into marking position.

20. In a marking machine, a plurality of pairs of marking disks, a support on which the disks areV mounted, a swinging frame pivotally secured to said support, a bracket pivotally secured to said frame, a plurality of fingers vpivotally secured to the bracket arranged to be moved selectively into engagement with said disks, a member Vmounted in the bracket for selectively engaging ger to rotate the disk to bring a character on said Y disk into marking position.

21. In a marking machine, a plurality of pairs of marking disks, a support on which the disks are mounted, a swinging frame pivotally secured to said support, a bracket pivotally secured to the frame, a plurality of fingers pivotally secured to said bracket arranged to be moved selectively into engagement with said disks, a member mounted in said bracket for selectively engaging one of said ingers for moving said nger toward its associated disk, a shaft mounted in said frame, a cam secured to said shaft arranged to engage said bracket to rotate said bracket to move the selected nger into engagement with its disk, and

- means on said shaft arranged to rotate said frame about its axis to rotate the disk to bring a marking character on said disk into marking position.

22. In a marking machine, a plurality of pairs of marking disks, a support on which the disks are mounteda swinging frame pivotally secured to said support, a bracket pivotally secured to said frame, a plurality of iingers pivotally secured to said bracket arranged to be selectively moved into engagement with said disks, a member mounted in said bracket for selectively engaging one of said fingers for moving said finger toward its associated disk, a shaft mounted in said frame, a cam secured to said shaft and arranged to engage said bracket to rotate said bracket to move the selected finger into engagement with its disk, a stationary bracket secured to said support, and a second cam mounted on said shaft and arranged to engage said stationary bracket to rotate said frame to bring a marking character on the disk into marking position.

23. In a marking machine, a support, pairs of marking disks rotatably mounted on said support, marking characters on said disks, the marking characters on one of the disks of a pair being located behind and in alinement with the marking characters on the other disk of the pair, means for rotating one of the disks ofra pair, means for preventing rotation of the other disk of the pair, and means on said disks for axially moving the disks to permit the marking charac- -ters on each of the disks of the pair to pass by each other.

24. In a marking machine, a support, pairs of marking disks rotatably mounted on said support, marking characters on said disks, the marking characters on one of the disks of a pair being located behind and in alinement with marking characters on the other disk of the pair, means for relatively rotating the disks, means for selectively locking the disks against rotation, and means on said disks for axially moving oneof the disks of a pair to separate the disks when the other disk of the pair is rotated.

25. In a marking machine, a support, a plurality of marking disks rotatably mounted on said support, means for selectively rotating the disks, means for preventing axial movement of the disks in one direction when a selected disk is being rotated to bring a marking character on said disk into marking position, and means for moving the disks axially in the other direction when one of the disks is rotated.

26. Ina marking machine, aplurality of pairs of marking disks, a support for said disks, marking characters on said disks, the marking characters on one disk of a pair overlapping the marking characters on the other disk of the pair, means for preventing axial movement of the disks in one direction when one disk is being rotated to bring a marking character into marking position, means for preventing rotation of the other disks, and means on the disks of each pair for moving the disks axially relatively to each other to move the marking characters on said disks out of overlapping relation when one of the disks of the pair is being rotated.

27. In a marking machine, a plurality of laterally interengaged marking disks, a support on which said disks are mounted, means for locking the disks against axial movement, means for moving some of the disks axially to permit one of the disks to be rotated, means for releasing the locking means to permit axial movement of the disks, and means for'rotating the marking disks to bring a marking character into marking position.

28. In a marking machine, a plurality of marking disks, a support on which said disks areV mounted for rotative and axial movement, levers for controlling the axial movement of said disks, means for locking the levers to hold the disks against axial movement, means on said disks for moving the disks axially When one of the disks is rotated, said locking means being movable to release said levers to permit' axial movement of the disks, and means for rotating the marking disks to bring a marking character into marking position.

29. In a marking machine, a plurality of marking disks, a support on -which said disks are mounted for rotative and axialv movement, levers for controlling the axial movement of said disks, cam members Varranged to release one of said levers to permit axial movement of the disks,

means on said disks for moving the disks axially When one of the disks is rotated, and means for rotating the marking disks to bring a marking character into marking position.

30. In a marking machine, a plurality of pairs of marking disksa support on which said disks are mounted, projections on said disks carrying marking characters, the projections on one of said disks of a pair being located behind and overlapping the projectionsV on the other disks of the pair, means for locking the disks against axial movement, means for releasing the locking means to permit axial movement of part of the disks, means on said disks for separating the disks of a pair to permit the projections on one of the disks of the pair to pass by the projections on the other disk of the pair when o-ne of the disks of the pair is rotated, and means for rotating the disks to bring a marking character into marking position.

3l. In a marking machine, a plurality of pairs of marking disks, a support on which said disks are mounted for rotative and axial movement, projections on said disks carrying marking characters, the projections on one of the disks of a pair being located behind and overlapping the projections on the other disk of the pair, means comprising levers for controlling the axial movement of said disks, cam members arranged normally to lock said levers whereby said disks are held against axial movement, means for operating said cams'to release one of said levers to peryeo mit axial movement of a portion of the disks when one of said disks is rotated, cam surfaces on the adjacent faces of said pairs oi disks for separating the disks to permit the projections on the disks of the pair to pass by each other when one of said disks is rotated, and means for rotating the disks.

32. In a marking machine, a plurality of pairs of marking disks, the disks of each pair being arranged for rotation in opposite directions, a support on which said disks are mounted, projections on said disks carrying marking characters, the projections on one of said disks of a pair being located behind and overlapping the projections on the other disk of the pair, means on said disks for separating the disks of a pair to permit the projections on the disks to pass each other when one of the disks of the pair is rotated, means for preventing axial movement oi said disks prior to the rotation of one of said disks, means for releasing the last-mentioned means to permit axial movement of the disks, and means for rotating the disks to bring a marking projection into marking position.

33. In a marking machine, a plurality of pairs of marking disks, each disk having typev carrying pro-jections arranged to overlap the projections on the other disk with which it is paired, the right-hand disk of each pair being arranged for rotation in one direction and the left-hand disk of each pair being arranged for rotation in the opposite direction, a support on which said disks are mounted, means for locking the disks against axial movement, said last-mentioned means being arranged to permit axial movement of the disks tothe left ci the one being rotated when the right-hand disk of a pair is to be rotated and to permit axial movement of the disks to the right when the left-hand disk of a pair is being rotated, means for rotating the disks, and means for separating the disks of a pair to permit the projections on one disk of a pair to pass by the projections on the other disk of the pair when one of the disks of the pair is rotated.

34. In a marking machine, a plurality of pairs of marking disks. the right-hand disk of each pair being arranged for rotation in a direction away from the operator and the left-hand disk of each pair being arranged for rotation toward the operator, a support on which said disks are mounted, means for locking the disks against axial movement, said last-mentioned means being arranged to permit axial movement of the disks to the left of the one being rotated when the right-hand disk of a pair is to be ro-tated and to permit axial movement of the disks to the right when the left-hand disk of a pair is being rotated, means for rotating the disks, and means connected to the locking means for insuring that the right-hand disk of a pair will be rotated in a direction from the operator and that the left-hand disk of the pair will be rotated in a direction toward. the operator.

35. In a marking machine, a plurality of pairs of marking disks, an actuating nnger associated with each pair of disks and arranged for movement toward said disks, means for moving a selected ringer toward said disks, a locking member associated with each pair of disks, means for moving a selected locking member out of engagement with its associated pair of disks, and. connections between the first-mentioned means and the last-mentioned means for insuring that the locking member will be withdrawn from the pair of disks with which a selected actuating nger has been moved into engagement.

36. In a marking machine, a plurality of pairs of marking disks, an actuating nger associated with each pair of disks, a member arranged to engage a selected finger for moving said nger toward the pair of disks, a locking finger associated with each pair of disks, a releasing member for'moving a locking member out of engagement with its associated disk, and connections between the first-mentioned member and the releasing member for maintaining said members in alinement with each other.

37. In a marking machine, a plurality of pairs of marking disks, a bracket, a plurality of actuating ngers pivotally mounted in said bracket, one of said ngers being associated with each pair of disks, a selecting member mounted in said bracket for moving a selected iinger toward its associated disk, a locking member associated with and normally in engagement with each pair of disks, a releasing member for moving a locking member out of engagement with its associated pair of disks, connections between the selecting member and the releasing member to move the releasing member into alinement with the pair of disks toward which a selected actuating finger has been moved by the selecting member, and means for moving the bracket on which the actuating ngers are mounted to rotate one of the disks of thepair.

38. In a marking machine, a plurality of pairs of marking disks, a bracket, a plurality of actuating ngers pivotally mounted in said bracket, one of said ngers being associated with each pair of disks, a selecting member mounted in said bracket for moving a selected nger toward its associated disk, a locking member associated with and normally in engagement with each pair of disks, a releasing member for moving a locking member out of engagement with its associated pair of disks, means connected to the selecting member for moving the releasing member into alinement with the stop linger associated with the selected pair of disks, means for operating the releasing member to move the: locking member out of engagement with its associated pair of disks, and means for moving said bracket to rotate one of the disks of the pair after the locking member has been moved out of engagement with the pair of disks.

39. In a marking machine, a support, a marking disk rotatably mounted thereupon, a frame carrying an actuating member adapted to engage said disk and to swing about the axis of said support to reset said disk, and means for moving said actuating member approximately radially into and out of engagement with the disk.

40. In a marking machine, a support, a marking disk rotatably mounted thereupon, means for resetting said disk comprising a frame mounted to move to and fro and having an actuating member mounted thereon to swing into and out of engagement with said disk, and means for swinging said member into engagement with said disk at the beginning of one part of the to-and-fro movement of said frame.

41. In a marking machine, a support, a plurality of marking disks rotatably mounted thereupon, means for resetting said disks comprising a swinging frame and disk actuating members disposed normally out of engagement with the disks, and means constructed and arranged to move a selected actuating member into engagement with its. associated disk during a portion of the swinging movement of said frame.

42. In a marking machinea plurality of pairs of marking disks, means for resetting said disks comprising actuators Vone of which is associated with each pair of disks, said actuators being mounted for reversed movement in opposite directions to rotate said disks, and means for selectively moving said actuators into engagement with one of the disks of a pair at the beginning of one of its said movements.

43. In a marking machine, a plurality of disks rotatably mounted in the machine, a frame swingably mounted abo-ut an axis concentric with that of the disks, a plurality of actuating ngers carried by said frame, locking members for said disks, and selectivey means for moving a finger toward one of the disks and for releasing the corresponding locking means.

44. In a marking machine, a plurality of marking disks, a swinging frame associated therewith, a plurality of actuating ngers on the frame, and cam means for moving a selected nger into engagement with a disk and Ythen swinging the frame to turn the disk.

45. In a marking machine, a plurality of marking disks each having a plurality of marking characters thereon, locking pawls associated with said disks, oscillatable disk-turning means, and means actuated by a continuous movement of said turning means in one direction for successively releasing a selected pawl and rotating the disk associated therewith to bring a succeeding marking character on said disk intomarking position.

46. In a marking machine, a plurality of marking disks, locking pawls associated with individual disks, oscillatable means having a disk-engaging member, and means rotatable in opposite directions for turning a disk by engagement of said member in one direction or the other, and means for releasing the selected pawl during a portion of the cycle of the oscillatable means, said releasing action occupying a dilerent portion of the cycle depending upon the direction of rotation of said means.

47. In a marking machine, a plurality of marking disks provided with peripheral projections which may be arranged in rows, a plate mounted for movement to engage a row of projections to aline them, means for clamping said disks together by pressing axially against the disks, and interrelated operating means for said plate and said clamping means.

48. In a marking machine,- a plurality of rotatably mounted marking disks, an actuator for rotating a disk, mounted for oscillation in reversed cycles when moving a disk forward or backward, means for locking said disks together, and interconnected operating means for said actuator and said locking means. j

49. In a marking machine, a plurality of rotatably mountedV marking disks, means for selecting a disk to be rotated, movable means for rotating a selected disk, and means adjacent to said selecting means and said movable'means and con- Ythe disks of each pair trolled from the disk rotating means constructed and arranged to prevent movement of the selecting means when the movable means is out of its initial position. Y

50. In a marking machine, a plurality of rotatably mounted marking disks, means for selecting a disk to be rotated, actuating means for rotating the selected disk, said actuating means being movable into and Yout of engagement with the selected disk, and means adjacent to said selecting means and said actuating means and controlled from the selecting means for preventing movement of the actuating means into engagement with the disk when the selecting means is out of disk designating position.

51. In a marking machine, a plurality of rotatably mounted marking disks, an oscillatable actuator for turning a disk, a rotatably mounted selector tofdetermine which disk shall be rotated, and means for preventing rotation of said selector when the actuator has been oscillated away from its normal position.

52. In a marking machine, a plurality of rotatably mounted marking disks, means for selecting a disk to be rotated, actuating means for rotating-- and interlocking means adjathe selected disk, cent to said actuating means and said disk rotating means and under the con-trol of both of said means for preventing rotation of the disks by the actuating means when the selecting means is out of its disk designating position and for preventing operation of the disk selecting means when the disk actuating means is out of its initial position.

53. In a marking machine, a plurality of marking disks, locking pawls for said disks, means for? resetting said disks comprising a plurality of actuators, a selector mounted and arranged to Vswing an actuator into engagement with the disk to be reset, and means for releasing a single pawl movable with said selector whereby only the pawl for the disk which is to be reset is disengaged therefrom.

Y 54. In a marking machine, a plurality of rotatably 'marking disks, and means for selectively rotating said disks to reset them, the disks of each" pair having cooperating surfaces at least one of which is inclined and which are arranged axially to separate the disks of that pair of which one disk is` rotated.

55. In a marking machine, a plurality of pairs;

of rotatably mounted marking disks, and means for selectively rotating said disks` to reset them, having interengaging cam members for aXially separating the disks of a pair when'one is reset.

56. In a marking machine, a plurality of pairs of rotatably mounted marking disks, and cam members on each disk arranged to cooperate with the other disk of a pair normally to prevent the rotation inV one direction Yof the disks of each pair relatively to each other, said cam members cooperating to separate axially the disks of a pair when rotated relatively to each other in the opposite direction.

HAROLD ERNEST ELLIOTT.

CERTIFICATE 0F CORRECTION.

rai-.ent Nc. 2,150,272. nareh 1L, 1959.

HAROLD ERNEST ELLIOTT It is hereby certified that error eppeare in the printed specifioation C of the above numbered patent requiring correction as follows: Page 10, second column, line'hh, claim 5).;,vbefore the word marking vinsert mounted;

and that the said Letters Patent should be read with this correction therein that the same may oonform to the record ofthe `maree in the Patent Office.

Signed and sealed this 5rd day of October, A. D. 1959.

Herm-y van Arsdal'ev, (Seal) Acting Commissioner o'f'Patents. 

